Results 1 to 10 of about 934 (185)

Antireflective vertical-cavity surface-emitting laser for LiDAR [PDF]

Nature Communications
Multijunction vertical-cavity surface-emitting lasers (VCSELs) have gained popularity in automotive LiDARs, yet achieving a divergence of less than 16° (D86) is difficult for conventional extended cavity designs due to multiple-longitudinal-mode lasing ...
Cheng Zhang, Huijie Li, Dong Liang
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Vertical Cavity With a Chirped Heterostructure Dual-Period High-Contrast Grating

IEEE Photonics Journal, 2022
A vertical cavity using a chirped heterostructure dual-period high-contrast grating (HCG) by simple fabrication is demonstrated. The reflectivity spectra of the vertical cavity were measured, consistent well with the calculated results.
Jing Zhang, Chenxi Hao, Wanhua Zheng, Anjin Liu   +3 more
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Surface-Emitting Lasers with Surface Metastructures

Photonics, 2023
Vertical-cavity surface-emitting lasers (VCSELs) have been widely used in consumer electronics, light detection and ranging, optical interconnects, atomic sensors, and so on. In this paper, a VCSEL with the surface metastructure like one-dimensional high-
Anjin Liu, Jing Zhang, Chenxi Hao, Minglu Wang, Wanhua Zheng   +4 more
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A novel metal-mode-filtered vertical-cavity surface-emitting laser with 8 μm oxide aperture and single mode output

Results in Physics, 2023
In this study, a new theoretical calculation of metal-mode-filtered vertical-cavity surface-emitting laser (MMF-VCSEL) is proposed. The optimized number of P-DBR and the metal layer thickness are used.
Jingfei Mu, Yinli Zhou, Xing Zhang, Jianwei Zhang, Chao Chen, Zhuo Zhang, Tianjiao Liu, Yuqi Xia, Yuehui Xu, Jingjing Sun, Haopeng Bai, Yongqiang Ning, Lijun Wang   +12 more
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High-Speed and High-Power 940 nm Flip-Chip VCSEL Array for LiDAR Application

Crystals, 2021
In this paper, we demonstrate the design and fabrication of a high-power, high-speed flip-chip vertical cavity surface emitting laser (VCSEL) for light detection and ranging (LiDAR) systems.
Kuo-Bin Hong, Wei-Ta Huang, Hsin-Chan Chung, Guan-Hao Chang, Dong Yang, Zhi-Kuang Lu, Shou-Lung Chen, Hao-Chung Kuo   +7 more
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Design of High-Power Red VCSEL on a Removable Substrate

Photonics, 2022
In this work, the architecture of a high-power InAlGaP/InGaP vertical-cavity surface-emitting laser (VCSEL) with an emission wavelength of 680 nm was studied.
Chun-Yen Peng, Wei-Ta Huang, Zhi-Kuang Lu, Shih-Chen Chen, Hao-Chung Kuo   +4 more
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VCSEL with multi-transverse cavities with bandwidth beyond 100 GHz

Nanophotonics, 2021
To fulfill the demands of high-speed photonic applications, researchers, and engineers have been working to improve the modulation bandwidth (MBW) of semiconductor lasers.
Heidari Elham, Ahmed Moustafa, Dalir Hamed, Bakry Ahmed, Alshahrie Ahmed, Sorger Volker J.   +5 more
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InAlGaP vertical cavity surface emitting lasers (VCSELs): processing and performance [PDF]

Conference Proceedings. 1997 International Conference on Indium Phosphide and Related Materials, 2002
The performance of AlGaInP based visible VCSELs has been advanced with the application of new heterostructure designs and the technique of selective oxidation. Improved performance at elevated temperatures as well as high wallplug efficiency, low threshold devices have been demonstrated for devices operating in the 670-680 nm region.
Crawford, M. H., Choquette, K. D., Hickman, R. J., Geib, K. M.   +3 more
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High Temperature Measurement with Low Cost, VCSEL-Based, Interrogation System Using Femtosecond Bragg Gratings

Sensors, 2022
In this article, a cost-effective and fast interrogating system for wide temperature measurement with Fiber Bragg Gratings is presented. The system consists of a Vertical Cavity Surface Emitting Laser (VCSEL) with a High Contrast Grating (HCG)-based ...
Konrad Markowski, Juliusz Bojarczuk, Piotr Araszkiewicz, Jakub Ciftci, Adam Ignaciuk, Michał Gąska   +5 more
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Optical glucose monitoring using vertical cavity surface emitting lasers (VCSELs) [PDF]

SPIE Proceedings, 2009
Diabetes Mellitus is a common chronic disease that has become a public health issue. Continuous glucose monitoring improves patient health by stabilizing the glucose levels. Optical methods are one of the painless and promising methods that can be used for blood glucose predictions.
Fard, Sahba Talebi, Hofmann, Werner, Fard, Pouria Talebi, Kwok, Ezra, Amann, Markus-Christian, Chrostowski, Lukas   +5 more
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